Island



UNITED sTATEs TENT oEEioE.

HENRI.7 SIMON, OF PROVIDENCE, RHODE ISLAND.

FASTENING FOR SHIRT-STUDS.

Speceaton of Letters Patent No. 23,617, dated April 12, 1859.

To all whom 'it may concern:

Be it known that I, HENRY SiMoN, of Providence, in the county of Providence and State ot' Rhode Island, have invented a new and Improved Shirt-Stud; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, making a part of this specification, in which- Figure l, represents a perspective view of one of my shirt studs showing the manner in which it is inserted into the button hole of a shirt. Fig. 2, is a vertical section of a portion of a shirt with one of my studs, in an enlarged scale, and Fig. 3, is a horizontal. section of ditto.

Similar letters ot' reference indicate corresponding parts.

This invention consists in arranging at the under side of a shirt stud four arms which are united by pivots in such a manner that they can be compressed so as to pass readily through the button hole of a shirt and that the same after they have passed through the button hole, may be brought in a position parallel with the side of the shirt, in which position the arms form a togglejoint, so that any pressure exerted on the outer ends of the arms tends to lock the same more firmly while they can easily be` unlocked by a slight strain, whereby the central pin is removed from the pivot which -fastens the arms to the stud.

To enable those skilled in the art to `fully understand, use and construct my invention I will proceed to describe the same.

A., is a shirt stud the form ot' which may be round, oval or in tact ot' any form to suit the fancy of purchasers and which may be made of any suitable material, gold of course being' the material which is most commonly used for constructing' them. and rigidly attached to the under side of the stud are two ears a, which serve to secure the arms by means of a pivot o. These arms are of equal length and they are so arranged that the same may be brought close together or turned back so as to form nearly a straight line, but they are not allowed to come quite down into a straight line as the space between the ears a, is filled up a little and a small spring (Z, is placed between the ears, which serves to keep the arms b, at a slight angle. Attached to the outer ends of the arms Z9, by means of pivots b, are two other arms c, which are united by a pin f, which extends beyond the sides of the arms on both sides to afford room for the heads g, which serve to open the arms, if the stud is to be removed from the shirt. The arms e, are of equal length with the arms b, or they may be a little longer. I prefer however to have them all of the same length, as this facilitates the manufacturing process of my studs, and the arms e, are slightly curved so as to give the whole a fine and light appearance. `Then the stud is fastened to the shirt the heads g, ot' the pin j', rest in cavities z., in the upper edges of the ears a, and it sinks a little below a line drawn through the centers of the pivots Z2.

The operation is as follows: The stud is taken between the thumb and the tore finger and the arms are compressed so that those parts, where the arms e, are pivoted to the arms 7), come close up to each other as clearly represented in Fig. 1, and in this position the arms are passed through the button hole ot a shirt. This hole ought to be just large enough to admit the ears a, so that the button ot the stud A, comes close up to the shirt as clearly shown in Figs. 2 and 3, and when the stud has been brought in this position a slight pressure on the united ends of the arms o, brings the pin f, down in the cavities l1., as clearly represented in Fig. 2, and the stud is effectively secured in the button hole ot the shirt. It will be noticed that the arms c, have to be sprung down a little in order to bring the pin j, below a line drawn through the centers of the pivots b,the arms being of the same length as the arms e, and the former not being allowed to come entirely down in line. This slight spring is sutlicient to prevent the arms c, from straightening out spontaneously and any strain eX- erted on the outer ends 7). ot the arms o, and v, will have a tendency to lock the studs more firmly to the shirt. In order to take the studs ont a slight. strain which tends to remove the pin f, from the pivot c, is sulticient to bring the former beyond the line drawn through the centers of the pivots o', and the arms o, and c, will collapse so that the studs can easily be withdrawn from the button hole of the shirt.

that I claim as new and desire to secure by Letters Patent, is,

Shirt-studs A, arranged with arms b, and e, to operate substantially in the manner and for the purpose herein specified.

HENRY SIMON. `Witnesses ALBERT M. HEWITT, HENRY MARTIN. 

